Impkovemeft-in windmills



uiten gitarre @anni @ffice EDWARD MCALLISTER, OF PLAINFIELD, ILLINOIS.

Letters Patent No. 67,654, dated Auf/ust 13, 1867.

@he Stintino ttfrttrh tu in tlgest tttttts nteut mit milking piatti tlg-e samt 'lO WIIOM IT MAY CONCERN:

Be it known that I, EDWARD MCALLISTER, of Plainfield, in the county of Will, and State of Illinois, have invented a new and useful Improvement in Windmills; and I do hereby declare that the following is a full, clear, and' exact description of the construction and operation of the same, reference being had tothe annexed drawings, making a part of this specification.

'lho nature and object of my invention are to construct a.l windmill so arranged that the weight of the'water will regulate the wind-wheel, thus causing the water to be elevated when the trough is empty, or partially so, and when the trough is full causing the pumping toceasc, which renders it a convenientI machine for watering cattle, or for other purposes.

Figure 1 is a vertical section.

Figure 2 is an upright view.

Figure 3 is a section showing the connection of the rod from the water-trough to the operative parts of the windlass above.

a a are posts 'supporting the windmill; bis the revolving tub supported upon -the wheels c c c c, which turn upon the circulartread d c?. e is ia connecting-rod leading from the troughf up to the circular part y; it is attached in two prongs to a ring wbrking in a recess which surrounds .the circular part g. 4 The trough f plays upon the fulerum j, which is situated at a little one side of the centre. z' is the pump, and c is the pumprod, which is connected to the shaft Zof the windmill at the crank m. n n is the wind-wheel with its blades t o o. The blades o o o are made to turn by being hung on a pivot. p is a sub-wheel placed immediately hack of the wind-wheel, and is connected to each and every blade o. This sub-wheel p works freely on the shaft l. At the rear ofthe sub-wheel? is the rod q, working in the recess in the hub; it works through the guide r, and is attached to the pulleydrheels'. t is a rope, passing from the end of the lever o, and attached to the periphery of wheels. :t is a rod passing' from the circular pai-tg up through the tub I), and comes up by the side of pulley-wheel s, as shown in Iig. 2, and works against the pin y.

The operation of my invention is as follows: As lthe wind causes the wind-wheel 'It to revolve, which worlts the pump, the water passes into the trough f. rllhis trough is divided by a partition. As the`tTUugh-lls, the

longer arm of the trough fills, and a greater weight being at one side of the fulerum j, than at the other, the short end of the trough is lifted up, and as the rod e is connected with this short arm it lifts the circular part g, which in turn 'lifts the rod a', and the rod :c coming in contact with the pin y, the pulley-wheel s is turned partially around; ceases. When the water in the long arm oi' the trough is exhausted the trough then assumes a horizontal position, the rod is lowered, and the trough, the lever e, and its weight, and the rope t, and the sub-wheel, are returned to their former position, and the blades are set to an angle with the wind, and pumping is resumed.

IIaving thus described the nature and' operation of my invention, what I claim as new, and desire to secure by Letters Patent, is I 1. Governing thefaction of a windmill by the weight of the water pumped by an organized mechanism, spbst'antially in the manner described.

2. Combining the trough f, connecting-rod e, circular part g, rod as, pulley-wheel s, and rod q, or their equivalents, substantially as and for the purpose shown.

EDWARD McALLISTER.

lVit-nosses:

J. M. Browne, ALoNzo C. ALLEN.

this draws back the sub-wheel p, which turns the blades edgeways with ythe wind, and thc pumpingA 

